| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Wang, Samuel C (9)
|
ADSCHE |
44.96 |
43.59 |
-1.37 |
| 2 |
Clive, Eoin T (10)
|
ADNHA |
45.84 |
46.29 |
0.45 |
| 3 |
Kinley, London D (10)
|
ADCLRK |
50.49 |
47.38 |
-3.11 |
| 4 |
Reardon, Carter M (9)
|
ADSCHE |
50.40 |
47.40 |
-3.00 |
| 5 |
Ayers, Henry J (9)
|
ADCLRK |
51.19 |
48.07 |
-3.12 |
| 6 |
Mian, Subhaan A (9)
|
ADCLIN |
58.82 |
49.47 |
-9.35 |
| 7 |
Flannigan, Owen E (9)
|
ADCLRK |
50.17 |
51.75 |
1.58 |
| 8 |
Freiberger, Samuel N (10)
|
ADCLIN |
52.53 |
52.39 |
-0.14 |
| 9 |
Vilics, James M (10)
|
ADSCHE |
57.04 |
52.91 |
-4.13 |
| 10 |
Kennedy, Ian M (9)
|
ADJJSC |
|
53.40 |
- |
| 11 |
Goodfellow, Maxwell A (10)
|
ADADDI |
56.84 |
53.44 |
-3.40 |
| 12 |
Hastings, Charley D (9)
|
ADSCHE |
51.77 |
53.96 |
2.19 |
| 13 |
Sheldon, Ryles K (10)
|
ADCLRK |
58.83 |
56.57 |
-2.26 |
| 14 |
Watson, Robert D (10)
|
ADCLIN |
57.09 |
57.05 |
-0.04 |
| 15 |
Fernandez, Landen G (9)
|
ADCANA |
1:21.62 |
58.69 |
-22.93 |
| 16 |
St. Thomas, Logan M (10)
|
ADCLIN |
|
1:05.17 |
- |
|
Stabinski, Viktor A (8)
|
ADCANA |
52.61 |
DQ |
- |
|
Howard, Jack M (10)
|
ADCLRK |
|
DQ |
- |
|
Lin, Jierui (10)
|
ADNHA |
1:00.99 |
DQ |
- |
|
Sheaffer, Roman K (10)
|
ADCLIN |
|
DQ |
- |
|
Kinley, Hunter W (9)
|
ADCLRK |
1:03.77 |
DQ |
- |
|
Brennen, James D (8)
|
ADCLIN |
52.23 |
NS |
- |